You have just confirmed I am correct. 8 bit panel means it is only 8 bit color. If you play 10 bit 4k through your tv internal player, it maps it to 8 bit color. If you use the z9s to play , the Zidoo converts it to 8 bit color. Your tv specs just marketing. It just means it is compatible with HDR10, not outright HDR10 physically.